Title :
Compact and highly efficient fiber amplifier modules pumped by a 0.98-μm laser diode
Author :
Shimizu, Makoto ; Horiguchi, Masaharu ; Yamada, Makoto ; Nishi, Isao ; Noda, Juichi ; Takeshita, Tatsuya ; Okayasu, Masanobu ; Uehara, Shinngo ; Sugita, Etsuji
Author_Institution :
NTT Opto-electron. Labs., Ibaraki, Japan
fDate :
2/1/1991 12:00:00 AM
Abstract :
Highly efficient and small-size erbium-doped fibers with a gain coefficient of 4.9 dB/mW and a strained quantum-well-type InGaAs laser diode with a lasing wavelength of 0.98 μm as a pumped light source. As a result, the module 4×6×1.5 cm, realized a maximum net gain of 33 dB with an electricity consumption of only 175 mW, which corresponds to a drive current of 80 mA. The module consists of four individual components: a pumping laser diode submodule, a wavelength-division-multiplexing-type fiber coupler, a polarization-insensitive optical isolator, and an erbium-doped single-mode fiber coil
Keywords :
erbium; fibre lasers; optical communication equipment; optical pumping; 0.98 micron; 175 mW; 33 dB; 80 mA; Er:fibre amplifiers; InGaAs; drive current; electricity consumption; fiber amplifier modules; gain coefficient; laser diode; maximum net gain; optical pumping; polarization-insensitive optical isolator; pumped light source; single-mode fiber coil; strained quantum-well-type InGaAs laser diode; wavelength-division-multiplexing-type fiber coupler; Diode lasers; Energy consumption; Gain; Indium gallium arsenide; Laser excitation; Light sources; Optical fiber amplifiers; Optical fiber couplers; Optical fiber polarization; Quantum well lasers;
Journal_Title :
Lightwave Technology, Journal of
